height=eval(input("请输入你的身高："))
weight=eval(input("请输入你的体重："))
bim=weight/(height**2)
print(bim)
if bim<18.5:
    print("过轻")
elif 18.5<=bim<=25:
    print("正常")
elif 25<bim<=28:
    print("过重")
elif 28<bim<=32:
    print("肥胖")
else:
    print("严重肥胖")